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Finding the Fourth Proportional to 40,471.76, 60,707.36 and 10,887.12

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Solution

The fourth proportional to 40,471.76, 60,707.36 and 10,887.12 is: 16,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,471.76 : 60,707.36 = 10,887.12 : x
  2. Step 2: Convert to fraction form
    40,471.76/60,707.36 = 10,887.12/x
  3. Step 3: Cross multiply
    40,471.76x = 60,707.36 × 10,887.12
  4. Step 4: Simplify right side
    40,471.76x = 660,928,313.20
  5. Step 5: Solve for x
    x = 660,928,313.20/40,471.76
  6. Step 6: Final answer
    x = 16,330.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.